uvm_fault(fffffd806b991d70,110c270000,0,1) at uvm_fault+0x274 sys/uvm/uvm_fault.c:-1
upageflttrap(ffff80003ac070b0,110c270110) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff80003ac070b0) at usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:605
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x739dc7882190, count: -12
ddb{0}> machine ddbcpu 1
Stopped at      db_enter+0x25:  addq    $0x8,%rsp
ddb{1}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
witness_checkorder(fffffd806531a7d0,9,0) at witness_checkorder+0x10b9 sys/kern/subr_witness.c:-1
rw_do_enter_write(fffffd806531a7b8,1) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234
rrw_enter(fffffd806531a7b8,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
VOP_LOCK(fffffd80611d0a40,2001) at VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527
vn_lock(fffffd80611d0a40,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570
vfs_getcwd_common(fffffd80611d0a40,fffffd80611d07b8,0,0,200,0,a150a633498e15e7) at vfs_getcwd_common+0xd1 sys/kern/vfs_getcwd.c:287
vn_isunder(fffffd80611d0a40,fffffd80611d07b8,ffff80003c446fb8) at vn_isunder+0x56 sys/kern/vfs_vnops.c:694
unp_externalize(fffffd80624bf200,f0,0) at unp_externalize+0x26f sys/kern/uipc_usrreq.c:1090
soreceive(ffff8000014211b0,ffff80003c45ef88,ffff80003c45ef38,0,ffff80003c45ef70,ffff80003c45f0fc,c2e00d3b4e49ef2b) at soreceive+0xc24 sys/kern/uipc_socket.c:1009
recvit(ffff80003c446fb8,5,ffff80003c45f0d0,0,ffff80003c45f180) at recvit+0x40b sys/kern/uipc_syscalls.c:1078
sys_recvmsg(ffff80003c446fb8,ffff80003c45f230,ffff80003c45f180) at sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:878
syscall(ffff80003c45f230) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c45f230) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x1067c5d4fd0, count: -14